To Edit Lessons in a Unit, follow the below steps:
Go to the Courses page
Log into your Almanack account and in the left sidebar, click on Lesson Planning > Courses.Open an existing course, from the list of courses, by clicking on the Course Tile
The Course page is displayed with a list of Units
To Edit Lessons in a Unit, click on the Edit Lessons link at the end of the Unit component
The app shows the Unit page.
To view the lessons & Edit them, Click on the Lessons tab
The Lessons tab is displayed, you may Edit the lessons from this page